How to notify a Swift UI view after a coordinator handles delegate call?

Question

I have a class MyCoordinator which implements SomeDelegate :

class MyCoordinator: NSObject {
    
}

extension MyCoordinator: SomeDelegate {
    func didReceiveSomeData(someData: SomeData) {
        //...someData is needed for the MyControllerRepresantable
    }
}

In a BasicView , I need to start MyControllerRepresantable (which is a UIViewControllerRepresentable ) with the received data:

struct BasicView: View {
//...
    var body: some View { 
//...
        NavigationLink(destination: MyControllerRepresantable(data: someData), isActive: $isNavActive) {}
    }
}

What would be the best way to do it? Maybe I could somehow observe someData so that when it is set, the View gets notified and can access it?

Answer 1

you can store your View instance in your Coordinator and then notify your view by setting a Binding or calling a method.

class Coordinator: NSObject {
        let controllerRepresantable: MyControllerRepresantable

        init(_ controllerRepresantable: MyControllerRepresantable) {
            self.controllerRepresantable = controllerRepresantable
        }

now you can notify your controllerRepresantable using a callback method or a binding.